(19)

(11)

EP 3 004 405 A1

(12)

(43) Date of publication: 13.04.2016 Bulletin 2016/15 (21) Application number: 14739499.3 (22) Date of filing: 06.06.2014

(51) International Patent Classification (IPC):  C22B 3/26(2006.01) C22B 15/00(2006.01) C22B 3/00(2006.01) (86) International application number: PCT/FI2014/050461 (87) International publication number: WO 2014/195586 (11.12.2014 Gazette 2014/50)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 07.06.2013 FI 20135630 (71) Applicant: Outotec (Finland) Oy 02230 Espoo (FI)	(72) Inventors: VALKAMA, Kari FI-28100 Pori (FI) SINISALO, Pia FI-28360 Pori (FI) KARONEN, Janne FI-32800 Kokemäki (FI) HIETALA, Kari FI-02740 Espoo (FI) (74) Representative: Kolster Oy Ab  Iso Roobertinkatu 23 PO Box 148 00121 Helsinki 00121 Helsinki (FI)